feat: add ssh2

fish/completions/ssh2.fish

@@ -0,0 +1,2 @@
+# Inherit ssh-copy-id options and host completions
+complete -c ssh2 -w ssh-copy-id

fish/functions/ssh2.fish

@@ -0,0 +1,10 @@
+# ssh-copy-id 后交互保存 SSH Host 别名
+function ssh2 --wraps ssh-copy-id --description "Copy SSH key and save host alias"
+    set -l script_path ~/.dotfile/script/ssh2.sh
+    if not test -f $script_path
+        echo "Error: ssh2 script not found at $script_path" >&2
+        return 1
+    end
+
+    bash $script_path $argv
+end